Boron nitride (BN) nanomaterials have excellent electrical, chemical and mechanical properties, such as high thermal conductivity, resistant to oxidation, chemical inertness, and negative electron affinity. These unique features make BN a promising cold electron emission material. In this work, we investigated on the field emission properties from BN nanotubes (BNNTs), among the various BN allotropes. BNNT is a tubular structured material like a carbon nanotube. The BN nanomaterial based field emitters were fabricated by a screen printing method. The screen printed BN emitters performed good field emission properties that presented good long-term stability and a high emission current. The detail field emission properties will be discussed.